G.B. Della Porta, Magiae natvralis. IV. 2.  Iris quomodo uideri possit : Si in peluim aquæ plenam speculum immergatur, diligens intuitur in parietum marginibus iridis colores generatos reperiet: & pulchriores.

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Miracle and Natural Magic

Genesis. XXX.37-39 .
Jacob took him rods of green poplar, and of the hazel and chesnut tree; and pilled white strakes in them, and made the white appear which was in the rods.
And he set the rods which he had pilled before the flocks in the gutters in the watering troughs when the flocks came to drink, that they should conceive when they came to drink.
And the flocks conceived before the rods, and brought forth cattle ringstraked, speckled, and spotted.

G.B. Della Porta, Natural Magic. IV. 2.
If you put a mirror  in  a basin full of water,  and that you come to look at the face of the wall,  you will see shining brightly colours of the celestial arch.

Edgar Allan Poe, Narrative of A. Gordon Pym Chapter 18. January 18.






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Le projet : l'Eau comme instrument d'optique à l'échelle du paysage
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